Home / 28,853.12-39,817.97-18,098.45

Finding the Fourth Proportional to 28,853.12, 39,817.97 and 18,098.45

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Solution

The fourth proportional to 28,853.12, 39,817.97 and 18,098.45 is: 24,976.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853.12 : 39,817.97 = 18,098.45 : x
  2. Step 2: Convert to fraction form
    28,853.12/39,817.97 = 18,098.45/x
  3. Step 3: Cross multiply
    28,853.12x = 39,817.97 × 18,098.45
  4. Step 4: Simplify right side
    28,853.12x = 720,643,385.30
  5. Step 5: Solve for x
    x = 720,643,385.30/28,853.12
  6. Step 6: Final answer
    x = 24,976.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.